Cash indicator and register



(No Model.) 5 Sheets-Sheet 1v H. COOK. CASH INDICATOR AND REGISTER.

No. 473,694. Patented Apr. 26, 1892.

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(No Model.) 5 Sheets-Sheet 2. H. 000K.

CASH INDIGATOR AND REGISTER. No. 473,694. .3 Patented Apr. 26, 1892.

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H. COOK. CASH INDIUATDR .AND REGISTER. No. 473,694. Patented Apr. 26,1892.

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H. COOK.

CASH INDICATOR AND REGISTER.

No. 473,694. Patented Apr. 26, 1892.

H. (300K. CASH INDICATOR AND REGISTER.

No. 473,694. Patented Apr. 26, 1892.

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UNITED STATES PATENT OFFICE.

HUGO COOK, OF DAYTON, OHIO.

CASH INDICATOR AND REGISTER.

SPECIFICATION forming part of Letters Patent No. 473,694, dated April26, 1892.

Application filed February 5, 1892. Serial No. 420,411. (No model.)

To cold whmn it may concern:

Be it known that I, HUGO COOK, a citizen of the United States, residingat Dayton, in the county of Montgomery and State of Ohio, have inventedcertain new and useful Improvements in Cash-Registers, of which thefollowing is a description, reference being had to the accompanyingdrawings, forming part of this specification.

{0 My invention relates to machines of the general character of thoseshown and described in my patents, Nos. 4695A and 469,545, of February23, 1892, in which machines the indicator and registering wheels eachrevolve IS in one direction only and are actuated by a driver whichlikewise revolves in one direction only.

My present invention consists in new combinations, constructions, andarrangements of parts incident to the further development of themachines shown in my aforesaid patents, all as will be hereinaftersetforth, and specifically pointed out in my claims.

In the accompanying drawings, Figure l represents a front elevation ofmy improved machine; Fig. 2, a rear elevation thereof with the rear sideof the casing removed; Fig. 2, an enlarged rear elevation of the driver;Fig. 3, a vertical central section of the machine 0 on the line 3 3 ofFig. 2, looking toward the right of the machine in that view; Fig. 3, avertical section of the driver, showing a rear view of the cam-groove inits front side. Fig. 3 is a detail View of one of the keys or stops.

5 Fig. at is a vertical section of the machine without the base on theline 4 at of Fig. 3, looking toward thefront of the machine; Fig. 5, acorresponding view on the line 5 5 of Fig. 3; and Figs. 6 and 7, similarviews, on

the line 6 6 and 7 7 of Fig. 8, respectively.

The same letters of reference are used to in dicate identical parts inall the figures.

The principal working parts of the machine are inclosed in a circularcasing A, supported 5 in an upright position upon a suitable base 13. Acentral shaft O is journaled in the front wall of the casing and in abearing supported in rear of said wall, as hereinafter explained. Thisshaft is revoluble in the direction of the arrow and has secured uponits front end a handle D for turning it, Fig. 1. Upon the opposite orrear end of the shaft 0, Figs. 2,

3, and 2, is secured what I term the driver, consisting of a disk E,provided on its rear face with cam-grooves and with a diametricalguideway, in which fits a sliding plate, to be presently described. Thisdisk E is fast upon the shaft 0 and turns with it. Between the disk andthe front wall of the casing are mounted upon or concentric to the shaftO various wheels, disks, cams, &c., as shown in the sectional view inFig. 3. Immediately to the left of the disk E in said figure is atoothed wheel F, Fig. 7, fast upon the rear end of a sleeve G, which isloose on the shaft 0 and extends to the left in Fig. 3 toward the frontwall of the casing, and has keyed upon its front end a large gear-wheelH and a toothed locking disk or ratchet I, Fig. 5. The wheel H is thedriving-gear for the primary regis- 7o tering-Whecl, whose pinion Jmeshes with the gear H, as shown in Fig. 5.

Next to the left of the toothed wheel F, Fig. 3, is a radially-slidingbar or plate K, Fig. 7, having an elongated slot at its middle, throughwhich the shaft O and sleeve G pass. Secured upon the right hand or rearface of this bar K, upon opposite sides of the central shaft, are twolugs or sets of teeth L L, which alternately co-operate with the toothedwheel F to drive the register in the manner hereinafter explained. Alsoprojecting from the rear face of the bar K, beyond the vertical plane ofthe teeth L L, is a stud M, which fits in a cam-groove L in the forwardside of the driver E, the shape of which groove is shown in Fig. 3.

Next to the left of the bar K, Fig. 3, is a large gear-wheel N, Figs. 6and 7, loose upon the sleeve G. This gear is provided upondiametrically-opposite sides of its center with two radial slots L andL, Fig. 6, through which extend two studs 0 O, projecting from the frontface of the bar K, Fig. 3,so that the bar and gear-wheel must revolvetogether, 5 while the bar is free to reciprocate diametrically of thewheel. The front ends of the studs 0 0 project beyond the front face ofthe wheel N and are beveled off to form teeth which co-operate with atoothed locking-disk P, Figs. 6 and 7, which is fast upon the rear endof a sleeve Q, surrounding the sleeve G and keyed at its front end to abracket composed, mainly, of two supportingarms R R, se-

ICO

cured to the rear side of the front wall of the casing, Fig. 5. Thetoothed disk P thus being fixed, it will be understood that when eitherone of the studs 0 0' upon the bar K is engaged with a notch in it, as'the upper lug O is in Figs. 3 and 7, said bar and the wheel N will bothbe positively locked from movement.

Next to the left of the locking-disk P, Fig. 3, and loose upon thesleeve Q, is a gear-wheel S, which is fast upon the rear side of thelarge indicator-wheel T. This gear-wheel is shown in dotted lines inFig. (5. forward face of the indicator-wheel T are arranged to beexposed singly ata reading-opening T in the front wall of the casing.The gear-wheel N, heretofore described, meshes with a small pinion N,Figs. 2, 6, and 7, fast upon a shaft journaled in a bracket N secured tothe casing at the right of the Wheel N, and a larger pinion N fast onthe same shaft as the pinion N' meshes with the gear S, fast upon theindicator-wheel T, so that the movements of the gear N are thustransmitted to the gear S and indicator T. 1

Next to the left of the indicator-wheel T, Fig. 3, is the bracket E,Fig. 5, heretofore described, this bracket forming the second bearingand support for the shaft 0, referred to at the beginning of thespecification.

Next to the left ofthe bracket R are the gear-wheel H and toothedlocking-disk I, Fig. 5, both fast upon the front end of the sleeve G, asheretoforedescribed, so that the movements of the toothed wheel F, whichis keyed to the opposite rear end of said sleeve adjacent to the driverE, are transmitted through the sleeve G and gear H to the register, theprimary Wheel J of which is shown in Fig. 5.

Next to the left of the locking-disk I, Fig.

. 3, is a plate or bar U, Fig. 4, mounted upon the shaft 0 by anelongated slot at its righthand end and by a similar slot upon ascrewstud V upon the casing near its left-hand end. This bar hasprojecting from its rear face a lug W, which co-operates with thetoothed wheel I, as indicated by the dotted lines in Fig. 5. A stud X,projecting from the forward face of the bar, fits in a cam-groove Y inthe rear face of a revoluble disk Z, fast upon the shaft 0. As the diskZ revolves,the bar U is slid toward and from the shaft 0 and the lug Wengaged with and disengaged from the ratchet I. When it is engaged withthe ratchet, it will lock the same and thegear H and register frommovement, as hereinafter explained.

, Next to the left of the bar U on the shaft 0, Fig. 3, is a second barA, extending toward the right-hand side of the machine in Figs. 4. and5. This bar is mounted upon the shaft by an elongated slot at itsleft-hand end and upon a screw-stud A by a similar slot near itsright-hand end. A stud A upon the front side of this bar fits in asecondcam-groove Y in'the disk Z, by which means the bar is given areciprocating movement as the shaft The numbers on the C and disk Zrevolve. The purpose of the bar A is to actuate the detent-plate B torelease the operated key at the completion of each revolution of thehandle and driver. This curved detent-plate is mounted by slots uponscrew-studs at B Figs. 4 and 5, so as .to be capable of reciprocating inthe arc of a circle concentric to the shaftC. A spring B connected tothe upper left-hand end of the plate B, yieldingly holds it in andrestores it to normal position. The keys 0' are arranged in two rowsconcentric to the shaft (J and pass through slots in the plate B. Theyare carried in tubular housings 0 upon the front face of the casing andtheir extreme rear ends pass through and are supported and guided inholes in a fixed plate 0 Figs. 2 and 3. Surrounding each key within itshousing 0 is a coiled resetting-spring 0, hearing at its onto? endagainst a shoulder on the key and at its inner end against the bottom ofthe bore, which is made in the front wall of the casing coincident withthe bore of the housing. The large bore does not extend quite throughthe wall of the casing; but a smaller one extends through the remainingthickness and permits the passage of the key and at the same time formsa shoulder at the bottom of the large bore, against which the inner endof the spring 0 may bear, as seen in Fig. 3. The stems of the keys areof the shape shown in Fig. 3 and are provided with shoulders 0 whichcooperate with the detent-plateB'. When a key is pushed in, its spring 0is compressed, and

its shoulder C pushes the plate 13 aside as it passes, after which theplate springs back toward normal position behind the shoulder anddetains the key in its inner position. Pins 0, passed through andprojecting from the sides of the keys, bear against the rear face of thewall of the casing when the keys are in their normal position and holdthe keys in place against the pressure of the springs 0 A stud B uponthe upper right-hand end of the plate B, Figs. 2, 4, and 5, rests in anotch in the upper side of the bar A. The right-hand side A of thisnotch is inclined or beveled, so that when the bar is slid to the lefttoward the center of the machine the incline A riding under the stud Bon theplate B, will lift that end of the plate against the resistance ofthespring B at its opposite.

end. This movement of the plate will carry it from behind the shoulderof any key which may have been pushed in' and caught by it, and the keywill thereupon be thrown out to normal position by its spring. Now owingto the shape of the cam-groove Y in the disk Z, with which groove thestud A on the bar A co-operates, the bar A will be slid towardthe-center of the machine and the detentplate 13' be moved, in themanner described, just before the operating-handle and driver completetheir revolution and come to normal position, so that the operated keyis released and restored to normal position at the end of each operationof the machine. The

free to be turned forward.

cam-groove Y holds the barA' to the left but an instant and moves it tothe right again and permits the plate B to be reset by the time thehandle and shaft reach normal position, so that when another key ispressed in preparatory to the next operation of the machine the plate Bwill be in position to engage the shoulder of the key. A portion of theperiphery of the disk Z is cut away, as seen in Fig. 4, to form ashoulder at Z. This shoulder co-operates with one end of a bent arm Zpivoted to the bar A, the other end of said arm fitting'in a slot in anupward extension of the plate 13. \Vhen the parts are all in theirnormal position, the left-hand end of the arm Z lies in the path oftravel of the shoulder Z and locks the machine from operation. \Vhen,however, any key is pressed inward and the detent-plate B thereby movedto the right and its right-hand end thrown upward, the right-hand end ofthe arm Z is carried with it and the left-hand end of the arm throwndownward, out of the path of the shoulder Z, and the disk Z is then\Vhen a key is pushed in until its shoulder passes the detent-plate, thelatter, in catching behind the shoulder, is not permitted to return allthe way to normal position, owing to the fact that the portion of thekey behind its shoulder is thicker than that in front of it, as seen inFig. 3 After a key is pushed in, therefore, the locking-arm Z is heldout of the path of the shoulder Z until the shaft and disk Z are givennearly a complete revolution and the plate B so moved by the stud A onthe bar A as to release the key, in the manner before explained, thelocking-arm being thrown up in front of the shoulder just before theparts come to rest in normal position.

The periphery of the disk Z is provided with ratchet-teeth, whichcooperate with a pawl F to prevent backward movement of the disk andshaft.

Upon the front face of the disk Z is a notched cam Z (shown in dottedlines in Fig. 4,) co-operating with a screen-plate Z, arranged tovibrate back and forth between the indicator-wheel T and thereading-opening T in the front wall of the casing to alternately hideand expose the numbers on said wheel. This screen is pivoted to thecasing at Z", and its lower end co-operates with the cam Z \Vhen thenotch in the cam is brought into position for the lower end of thescreen-plate to enter it, a spring Z connected to the plate, will pullthe upper end of the plate to the left away from the reading-opening,and expose the number on the wheel T, which may then be behind theopening. Then the disk Z is turned forward, how ever, the periphery ofthe cam Z, bearing against the lower end of the plate Z' will throw thescreen to the right behind the reading-opening and hold it there untilthe notch in the cam again comes around into position for the lower endof the plate to spring into it. lVhen the operating-handle and otherparts of the machine are in their normal position of rest, the notch inthe cam Z stands in position for the end of the plate Z to engage it,and the screen is held by the springZ to the left of the reading-openingto expose a number on the indicator T. lVhen the operating-handle isstarted forward at the beginning of an operation, the cam Z at oncethrows the screen behind the reading-opening, and the numbers on theindicator-wheel which pass behind said opening are hidden until thehandle reaches normal position again,

whereupon the screen is pulled to the left by its spring and the propernumber on the indicator exposed to view.

As heretofore stated, the driving-disk E at the rear of the machine,Figs. 2 and 2, is provided upon its rear face with two eccentricsemicircular grooves G and G and a radiallysliding plate G fitting in asuitable guideway in the disk. These grooves and this sliding plateco-operate with two lugs H and H projecting into the grooves from theinner face of a latch-bar 1, Figs. 2 and 3 and dotted lines in Fig. 2.This bar extends diametrically across the machine and is suitably bentor shaped to fit over the driver E and have its opposite ends fitagainst the rear face of the bar K, heretofore described and as seen inFigs. 2 and 3. The opposite ends of the bar I are provided with slotswhich embrace lugs l on the rear face of the bar K, Figs. 2, 3, and 7,and the heads of screws 1 entering the lugs, secure the bar I to the barK. The two bars thus must revolve together, but are free to reciprocateindependently of each other.

Upon the front face of the bar K, near its opposite ends, Fig. 3 anddotted lines in Figs. 7, are two lugs O and 0*, which co-operate with ashoulder N on the inner face of a lug N secured upon the bracket N Figs.2, 3 and 7, in the manner hereinafter explained.

It will be remembered that the bar K has upon its front face two studs 0and 0', Fig. 3, which project through slots in the gearwheel N, whichdrives the indicator, Figs. 6 and 7, so that the bars K and I willtherefore both revolve with the wheel N. Upon the inner face of one endof the bar I are two cams J and J Figs. 2 and 3, and upon the inner faceof its opposite end two similar cams J" and J These cams co-operate withthe rear ends of the keys C, the cams J and I with the keys of the outerrow, and the cams J and J with the keys of the inner row. The cams J andJ also cooperate with the outer side of the lug N on the bracket N allas hereinafter explained.

In Fig. 2 is shown a full-sized rear view of the driver E, a portion ofthe latch-bar I being shown in dotted lines, and its lugs I1 and Hfitting in the grooves G and G in section. It will be seen that theouter wall of the groove G at the right-hand side of the IIO 'pass bothof these shoulders before it can enter the groove G 80 at the left-handside of the disk the inner wall-10f Ithegroove G'f terminates intwo.shouldersK and K both of which inustbe passed'by the lug H in the grooveG before it can enter. the-groove G.

. Upon therighthand end of the sliding plate G are two .teeth M and MThis plate is pressed toward the'ri'ght-in Figs. 2and 2 andyieldinglyheld in theposition shownbya coiled spring Ginterposed-ina'recess formed in theside of-the plate at the leftof itsmiddle, the-spring bearing'at one end against the plate and at its otheragainst thebaseof the shoulders K3 and K 5 Near its'left-hand end the"plate G i is provided. with "a transverse slot Giwhich normallyregisters with-theend of the groove G but may be made to register withthe end'of the groove G when the plate G is slidtoward the" leftandit-he'v spring G compressed.

The operation of the machineiisxas follows, assuming the parts tobei'nthe position shown in the drawings, in. indicationiof a previous sale offifty-five .cen'ts: :As 1 the :driver E is turned with theoperating-handle and central shaft in the direction/of; the arrows inFigs; 2 and 2 and .the first tooth-1M at the righthand end of the plateG comes. in contact with the lug H on. the bar- I, that end of the platewill be. forced slightly. inward against the 'resistanceof the spring Guntil thetooth passes the lug, whereupon the plate-will spring back tonormal position. and the lug will be caught between the teeth M and Mwith its upper rear face in contact with the shoulder K of the driver.At this moment, also, the cam-groove L? in the forward side of thedriver, Fig. 3, acting onzthe stud Mofr the bar K, Figs. 3 and 7 will.lift saidibar from the position shown in Figs. 3 and- Zand disengageitslteeth L from the registering-wheel F. The bar .I (and with it thebar K and the gear-wheel N, which. drives theindicator): being nowlocked. to the-driver E by the lug H, as the driver continues-to.revolve these parts are carried around with itsuntil the cam J 3 upontheinner faceof thelower end of the bar I in Fig. 2 reaches the lug N onthe bracket N As the 1 cam J rides over the outer side of the lug'N, theI barl will be drawntoward that side of the machine and the lug H onthe'bar will' pull the plate G in' the same direction against theresistance of the spring G far enough to permit the lug to clear theshoulder K. At this moment the lug 0 upon the inner face of the lowerend of the bar K, Figs. 3 and 7,.will come incon tact with theshoulder'N on the lug N. This will momentarilyarrest the barsK and I andthe driver will turn slightly forward independently of them. Thisindependent movement.

latter-will then abut against the shoulder K and be confined betweensaid shoulder and the tooth M This'independent forward movementof thedriven-while the bar Kis caught on the: shoulder N serves anotherpurpose. It causes the cam-groove L in the forward side of the'driver,Fig.3, acting on' the stud M of the bar K,'to draw said bar toward the'leftand engage itsteeth L with the registering-wheel and at the sametime carry the lug 0 out of engagement'with the shoulder N to releasethe bar'andpermit it to move on forward. The driver is thus connected tothe re ister, so that from this point forward it drives The end of nowbegins to' travel over the rowsof keys G,-andlwhen the keywhose-rear'end'has been thrown into-the path of travel of the camJ or J2 is reached the outer face of the 1 cam-wi-llride' over the inner faceof the key and the' bar I will be forced upward away from thekeyuntilthe abrupt'shoulder or heel O of-the cam engages the key and posi-\tively arrests the bar. 'This'upward move= ment of the bar causesitsJlug H, which has been confined between the tooth M on the plate Gand the shoulder K on the driver, to'press the plate upward far enoughto per: mit the lug'to clear the shoulder K and enter the groove G thelug H atithe opposite side' of the driver having cleared the shoulders Kand'K and simultaneously entered the groove G. The l-ug H now beinginthe groove G and the lug H in the groove G, the

driver is free. to turn onto normal positionin- I dependently of the barI and connected parts, 7

which remain at the point at which they-were arrested by the operatedkey. =A-t the moment that the bars I" and Y K areal-rested by theoperated key and the driver begins to move forward independently of themthe action of the cam-groove L in the front face of the driver uponthestud M on the bar K will draw the bar downward, more deeply-engaging itsteeth L with the notches in the wheel F," as shown in the case of theteeth L in Fig.

7, and at the same time engaging the extreme forward end of the lug O onthe front side of the'barK (in front of the gear-wheel N, Fig. -3)with anotch in the locking-disk P,

.fturnsforward from normal position atthe moment or just before thetoothed end of the plate G reaches the lug H which is then standing inits path, the camgroove L in the front side of driver, acting on thestud -M' on the bar K, lifts said bar, and not only disengages the lug 0from the locking-disk IIO P, but also disengages the teeth I. from thewheel F, which drives the register, so that the bars I and K and thegear N, which drives the indicator, are then free to turn forward withthe driver without the wheel F and register. To prevent any accidentalturning forward of the wheel F and register, however, I provide the lockshown in Figs. t and 5, where, it will be remembered, a lock lug-toothXV, upon the rear side of a bar U, cooperates with a ratchet I, fastupon the front side of the gear H, which drives the register. A stud X,upon the forward side of the bar U, co-operates with a cam-groove Y in adisk Z, and the shape of said groove is such that the bar U is drawninward and the tooth engaged with the ratchet I at the begin 11mg of theforward movement of the driver from normal position and holds it in thislocking position until the driver has made half of a revolution,whereupon the bar U is thrown outward again, the tooth W disengaged fromthe ratchet I, and the registeringwheel released.

Having described above the operation of the various parts in detail, itwill, perhaps, make it clearer to describe it more generally and brieflyas follows: lVith the parts in the position shown in the drawings someone of the operating-keys is first pushed in and caught by thedetent-plate'B, Figs. 3, 4, and 5. This will move the detent-plateupward to the right in said figures and throw the locking-arm Z out ofthe path of the shoulder Z on the diskZ to permit the latter and theoperating-handle to be moved forward. The handle is then started forwardand the cam Z on the forward face of the disk Zat once throws thescreen-plate Z to the right and closes the reading-opening T. Thecamgroove Y inthe disk Z, acting on the studX of the'barU,then'1novesthe locking-tooth XV into engagement with the ratchet I and locks theregister. Just before the toothed end of the plate G and shoulder K ofthe driver, Figs. 2 and 2, reach the lugI-I on the barI and pick up saidbar to carry it and the bar K and gear N forward with the driver thecamgroove L in the front side of the driver, acting on the stud M of thebar K, lifts said bar and disengages the lug 0 from the locking-disk Pand the teeth L from the register-wheel F. The driver then carries thebars I and K and gear-wheel N on around with it. When the driverhascompleted one-half of a revolution and the lower end of the bar I hasbeen carried around until its cam J engages the outer side of the lug Nthe indicator has been brought to zero or initial position. At thispoint the cam-groove Y in the disk Z, Figs. at and 5, moves the bar U tothe left again and disengages the tooth XVfrom the ratchet I to releasethe register. As the cam J 3 on the bar I rides over the outer side ofthe lug N", Fig. 2, the bar is drawn to the right and the lug H movedout of engagement with the shoulder K of the driver, Fig. 2. The lug Oon the forward side of the lower end of the barK then comes in contactwith the shoulder N on the lug N and momentarily arrests the bars I andK, while the driver moves on without them far enough to carry itsshoulder K and the tooth M on theplate i past the lug II and engage theshoulder K with said lug, and also to cause the camgroove L in the frontside of the driver to draw the bar K to the left far enough to disengageits lug 0" from the shoulder N on the fixed lug N and to engage itsteeth I. with the register-wheel F. The lug O" on the bar K having nowcleared the shoulder N the driver carries the bars K and I and theindicator and register forward with it, moving the indicator from Zeroor initial position to the new indication and adding the amount upon theregister. lVhen the end of the bar I, which carries the cams J and Jwhich is now traveling over the rows of keys C, reaches the operatedkey, (whose rear end will stand in the path of one of the cams J or J*,)the cam will ride over the key and lift thebar K, disengaging its lug Hfrom the shoulder K of the driver, and as the shoulder O at the heel ofthe cam strikes the key and positively arrests the bar I the drivermoves on alone. At the beginning of the independent movement of thedriver the cam-groove L in its forward side, acting 011 the stud M ofthe bar K, will draw down the bar K to the position shown in Fig. 7 andengage its lug O with the locking-disk P, Fig. 3 and in dotted linesFig. 7. Just before the driver reaches normal position, the cam-groove Yin the disk Z, Figs. 4 and 5, acting on the stud A of the bar A, drawssaid bar to the left, and the incline A riding under the pin I3 on thedetent-plate B, lifts said plate and releases the operated key, whosespring immediately throws it out to normal position. The cam-groove Ythen moves the bar A to the right again, the spring B resets thedetentplate B, andv the locking-arm Z is moved into the path of theshoulder Z on the disk Z, while the notch in the cam Z on the front sideof the disk Z comes under the lower end of the screen-plate Z as theparts reach normal position, and the spring Z draws the screen Z awayfrom the reading-opening T to expose the new indication. As beforestated, when the cam J or J on the bar 1 comes in contact with theoperated key it rides over the key and lifts the bar I until theshoulder O at the end of the cam strikes the key. This positivelyarrests the bar and the driver moves on alone, leaving the shoulder ofthecam caught upon the key. As the driver begins its further independentmovement, however, the cam-grooves G and G owing to their eccentricposition in the driver, will lift the bar I and carry the shoulder O ofthe engaged cam above the line of the row of keys, as seen in Fig. 2, sothat at the next operation of the machine said cam and shoulder cantravel freely above the row of keys, and thereby clear the operated keyif it should happen to be one to the right of the bar in said figure. Asshown in the drawings, the gear N, which revolves with the bars K and Iand drives the indicator, has sixty teeth. The gearN', with which itmeshes, has twenty teeth; the gear N Oil-"file same shaft as the gear Nthirty-two teeth, and the gear S, fast on the indicatorwheel T,forty-eight teeth, so that the wheel T will make two revolutions foreach revolu: tion of the. gear N. The rows of keys C occupy one-third ofthe circles in which they are located, and the numbers upon the wheel Toccupy two-thirds of the circle in which they are located. The travel ofthe end of the bar I over the entire length of the rows of keys willcause the wheel T to make twothirds of a revolution, while ahalf-revolution of the bar I will cause the wheel T to make a fullrevolution. the numbers upon the wheel T to be made larger than if thatwheel made but one revolution for each revolution of the bar I and gearN.

The arrangement of the keys in two concentric rows co-operating with asingle latchbar 1 enables a larger number of keys to be employed in agiven space than when they are arranged in a single row, as in my priorpatj ents before referred to.

Thirty keys instead of twenty might readily be employed in my presentmachine by making the two rows of keys extend over one-half of thecircles in which they are placed. In such case the numbers on theindicator-wheel T would be made to form a complete circle, so that amovement of the bar I over the entire series of keys would give theindicator-one complete revolution.

Having thus fully described my invention, I claim 1. The combination ofa revoluble drivingdisk provided with two cam-grooves and adriving-shoulder, a revoluble and radiallymovable latch-bar providedwith two lugs fitting in the cam-grooves in the driver and alternatelyco-operating with the-driving-shoulder, and a series of stopsco-operating with the latch-bar to disconnect its engaged lug from theshoulder of the driver at different points, substantially as described.

2. The combination of a revoluble drivingdisk provided with twocam-grooves and a driving-shoulder, a toothed latch-plate carried by thedisk, a radially-movable andrevoluble latch-bar provided with two lugsfitting in the cam-grooves in the disk and alternately cooperating withthe driving-shoulder and the.

toothed plate, anda series of stops co-operating with the latch-bar todisengage its engaged lug from the driving-shoulder at different points,substantially as described.

This arrangement permits i provided with the two grooves G and G and jthe driving-shoulder K, the toothed plate G the radially-sliding andrevoluble bar I, havin g the two lugs H and H fitting in the grooves Gand G and oo-operating alternately with g 3 the shoulder K and toothedplate G and the v series of keys 0, co-operating with the bar I,substantially as described.

fitting in the cam-grooves and alternately cooperating with the driving-shoulders and toothed plate, a fixed cam co-operating with thelatch-bar at the end of the first half of the revolution of thedriving-disk to disconnect its engaged lug from one of the shoulders ofthe disk and cooperating with a series of stops during the second halfof the revolution of the driving-disk to disconnect said lug from theother shoulder, substantially as described.

4. The combination of the revoluble drivin g-disk E, provided with thetwo grooves G and G and drivingshoulder K, the radiallysliding andrevoluble bar 1, having the'lugs H and H fitting in the grooves G and Gand alternately co-operating with the drivingshoulder K, and the seriesof stop-keys 0, co- 5 operating with the bar I, substantially as de- Yscribed.

5. The combination of the driving-disk E,

6. The combination of the driving-disk E,

j provided upon one side with the cam-groove L and on the other sidewith the twogrooves G and G and driving-shoulders K and K theradially-movable and revoluble bar K,having the stud M fitting in thegroove'L and provided with the teeth L and L,-the regisa tering-wheel F,with which'the teeth L and L alternately engage, the bar 1 upon theoppo-- site side of the disk E, revolving with the bar K, but radiallymovable independently thereof, the lugs 11' and H on the bar I,fittingin 7 the grooves G and G in the disk E and cooperating with thedriving-shoulders K and K the fixed stop N co-operating with the bar Kand the fixed cam N and series of keys 0, co-operating with the bar I,as described.

7. The combination of the driving-disk E, provided with the grooves Land G and G substantially and driving-shoulders K and K the bar K,

provided with the stud M, co-operating with the groove L the teeth L andL, and toothed studs 0 and O on the bar K, the fixed locking disk P,co-operating with the toothed studs 0 and O, and the registering-wheelF, cooperating with the teeth L and L,the gear N, revolving with the barK, the bar I, revolving with the bar K and provided with lugs H and Hfitting in the grooves G and G in the disk E, and with cams J and J thefixed stop N co-operating with the bar K, and the fixed cam N and keys0, co-operating withthe cams J and J on the bar I,substantially asdescribed.

8. The combination of a driver E, having a driving-shoulder K, aradially-movable andrevoluble bar I, provided with the two lugs H and Halternately co-operating wit-h the too shoulder K, the keys 0,co-operating with the bar and the gear N, revolving with the bar, thepinion l meshing with the gear N, the pinion N revolving with the pinionN, the indicator-wheel T, and the gear S, fast thereon and meshing withthe pinion N substantially as described.

9. The combination of a driver E, having a driving-shoulder K, aradially-sliding and revoluble bar I, provided with lugs H and Halternately co-operating with the shoulder K, and also provided with thetwo cams J and J, each having an arresting-shoulder O and the series ofkeys 0, co-operating with the cams J J and shoulders 0 substantially asdescribed.

10. The combination of a revoluble driver, a radially-movable andrevoluble bar driven thereby, and two concentric rows of keyscooperating with the bar, substantially as described.

11. The combination of a revoluble driver having a driving-shoulder, aradiallyanovable and revoluble bar provided with a lug co-opcrating withthe shoulder of the driver, and two concentric rows of keys co-operatingwith the bai, substantially as described.

1:2. The combination of a revoluble driver haviin a d rivirigshoulder, aradially-movable and; 'evoluble bar provided with a lug co-opcratingwith the driving-shoulder, and a fixed onn {tlldhWO concentric rows ofmovable cams 0 keys (:o-operating with the bar, substantially asdescribed.

1 The combination of a revoluble driver, a evcluhle wheel, a revolublelatch for connc Oting them, and two concentric rows of keys Co-0peratiwith the latch to disconnect them.

14. The combination of a revoluble driver, a revolubleregistering-wheel, a latch for conneJet'mg them at the end of the firsthalf of the revolution of the driver, a series of stops fordisconnecting them during the second half of the revolution of thedriver, and a lock actuated by the driving mechanism to lock theregistering-wheel at the beginning of the first half of the revolutionof the driver and to unlock it at .the end of said half-revolution.

15. The combination of a revoluble driver, a revoluble indicator-wheel,and a revoluble registering-wheel, a latch for connecting the driver andindicator-Wheel during the first half of the revolution of the driver,and a cam co-operating with the latch at the end of said halt-revolutionto cause it to connect the driver and registering-wheel, a series ofstops co-operating with the latch during the second half of therevolution of the driver to disconnect the driver from both theindicator and registering wheels, and a lock actuated by the drivingmechanism to lock the registering-wheel at the beginning of the firsthalf of the revolution of the driver and to unlock it at the end of saidhalf-revolution.

16. The combination of the locking-ratchet I, revolving with theregistering-wheel, the revoluble disk Z, provided with the canrgroove Y,and the bar U, provided with the stud X, co-operating with thecam-groove Y, and with the locking-tooth \V, cooperating with theratchet I, substantially as described.

17. The combination of a revoluble driver, a revoluble wheel, arevoluble latch for connecting them, a series of stops co-operating withthe latch to disconnect them, and a lock for the driver, actuated by theoperation of a key to release the driver and operating automatically tolock the driver again at the completion of its revolution.

18. The combination of a revoluble shaft, a driver fast thereon, arevoluble wheel loose thereon, a latch for connecting them, a series ofkeys co-operating with the latch to disconnect them, a locking-diskrevoluble with the driver, a locking-dog co-operating therewith to lockthe driver from movement and actuated by the operation of any one of thekeys to release the driver. 7

19. The combination of a revoluble shaft, a driver fast thereon, arevoluble wheel loose thereon, a latch for connecting them, a series ofshouldered keys cooperating with the latch to disconnect them, adetent-plate moved by the operation of any one of the keys andcooperating with the shoulder of the keyto hold the key in operatedposition, a locking-disk fast upon the shaft, and a locking-dogco-opcrating with the disk and actuated by the movements of thedctent-plate to lock the driver from movement, except when one of thekeys is operated.

20. The combination of a revoluble driver, a revoluble wheel, arevoluble latch for connecting them, a series of shouldered keyscooperating with the latch to disconnect them, a movable detent-plateco-operating with the shoulders of the keys to detain them in operatedposition and moved by the driving mechanism at the completion of therevolution of the driver to release the operated key.

21. The combination of a revoluble driver, a revoluble wheel, alatch forconnecting them, a series of shouldered keys co-operating with thelatch, a movable detent-plate co-operating with the shoulders of thekeys to detain them in operated position, and a cam actuated by thedriving mechanism and co-operating with the detent-plate to move thesame and release the operated key at the end of the revolution of thedriver.

22. The combination of a revoluble shaft, a driver fast thereon, a wheelloose thereon, a latch for connecting them, a series of shouldered keysco-operating with the latch to disconnect them, a movable detent-plateco-opcrating with the shoulders of the keys to detain them in operatedposition, and a cam fast upon the revoluble shaft and actuating thedetent-plate to release the operated key at the completion of therevolution of the driver.

The combination of a revoluble driver, a revoluble indicator, arevoluble latch for connecting them, aseries of stops co-operat providedWith-a reading-opening for the exing'with the latch to disconnect them,a casposnre of the numbers 011 the Indicator, a, ing provided with areading-opening for the screen movable back and forth between the 15exposure of the numbers upon'the indicator, reading-opening andindicator to alternately 1 5( and an automatic screen actuated by thedrivhide and exposethe numbers on the latter,

1;, ing mechanism to open and close the readingand a cam fast upon therevoluble shaft and opening to alternately expose and hide theco-operating with the screen.

numbers on the indicator.

xv 24. The combination of a revoluble shaft, a HUGO COOK. I 10 driverfast thereon, a revoluble wheel loose WVitnesses:

thereon, a latch for connectingthem, a series THOMAS CORWIN, of stopsco-operating with the latch, a casing PEARL N. SIGLER.

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